/* Demo Note: This demo uses a FileProgress class that handles the UI for displaying the file name and percent complete.
The FileProgress class is not part of SWFUpload.
 */
/* **********************
 Event Handlers
 These are my custom event handlers to make my
 web application behave the way I went when SWFUpload
 completes different tasks. These aren't part of the SWFUpload
 package. They are part of my application. Without these none
 of the actions SWFUpload makes will show up in my application.
 ********************** */
function fileQueued(file) {
	try {
		var progress = new FileProgress(file,
				this.customSettings.progressTarget);
		//progress.setStatus("文件排队中...");
		progress.toggleCancel(true, this);
	} catch (ex) {
		this.debug(ex);
	}
}
function fileQueueError(file, errorCode, message) {
	try {
		if (errorCode === SWFUpload.QUEUE_ERROR.QUEUE_LIMIT_EXCEEDED) {
			alert("上传的文件数太多.\n"
					+ (message === 0 ? "上传的文件数达到上限."
							: "你应该选择"
									+ (message > 1 ? "到" + message
											+ "个文件." : "一个文件.")));
			return;
		}
		var progress = new FileProgress(file,
				this.customSettings.progressTarget);
		progress.setError();
		progress.toggleCancel(false);
		switch (errorCode) {
		case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
			progress.setStatus("文件过大.");
			this.debug("错误码:文件过大,文件名: " + file.name
					+ ", 文件大小: " + file.size + ", 消息: " + message);
			break;
		case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
			progress.setStatus("空文件不能上传.");
			this.debug("Error Code: Zero byte file, File name: " + file.name
					+ ", File size: " + file.size + ", Message: " + message);
			break;
		case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
			progress.setStatus("Invalid File Type.");
			this.debug("Error Code: Invalid File Type, File name: " + file.name
					+ ", File size: " + file.size + ", Message: " + message);
			break;
		default:
			if (file !== null) {
				progress.setStatus("Unhandled Error");
			}
			this.debug("Error Code: " + errorCode + ", File name: " + file.name
					+ ", File size: " + file.size + ", Message: " + message);
			break;
		}
	} catch (ex) {
		this.debug(ex);
	}
}
function fileDialogComplete(numFilesSelected, numFilesQueued) {
	try {
		if (numFilesSelected > 0) {
			document.getElementById(this.customSettings.cancelButtonId).disabled = false;
		}
		/* I want auto start the upload and I can do that here */
		this.startUpload();
	} catch (ex) {
		this.debug(ex);
	}
}
function uploadStart(file) {
	try {
		/*
		 * I don't want to do any file validation or anything, I'll just update
		 * the UI and return true to indicate that the upload should start. It's
		 * important to update the UI here because in Linux no uploadProgress
		 * events are called. The best we can do is say we are uploading.
		 */
		var progress = new FileProgress(file,
				this.customSettings.progressTarget);
		progress.setStatus("开始上传...");
		progress.toggleCancel(true, this);
	} catch (ex) {
		this.debug(ex);
	}
	return true;
}
function uploadProgress(file, bytesLoaded, bytesTotal) {
	try {
		var percent = Math.ceil((bytesLoaded / bytesTotal) * 100);
		var progress = new FileProgress(file,
				this.customSettings.progressTarget);
		progress.setProgress(percent);
		progress.setStatus("上传中...");
	} catch (ex) {
		this.debug(ex);
	}
}
function uploadSuccess(file, serverData) {
	try {
		var progress = new FileProgress(file,
				this.customSettings.progressTarget);
		progress.setComplete();
		progress.setStatus("上传完成.");
		progress.toggleCancel(false);
		var jsonStr = $.parseJSON(serverData);
		//alert(jsonStr.resultStr);
	} catch (ex) {
		this.debug(ex);
	}
}
function uploadError(file, errorCode, message) {
	try {
		var progress = new FileProgress(file,
				this.customSettings.progressTarget);
		progress.setError();
		progress.toggleCancel(false);
		switch (errorCode) {
		case SWFUpload.UPLOAD_ERROR.HTTP_ERROR:
			progress.setStatus("Upload Error: " + message);
			this.debug("Error Code: HTTP Error, File name: " + file.name
					+ ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_FAILED:
			progress.setStatus("Upload Failed.");
			this.debug("Error Code: Upload Failed, File name: " + file.name
					+ ", File size: " + file.size + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.IO_ERROR:
			progress.setStatus("文件IO错误");
			this.debug("错误码: 文件读写出错, 文件名: " + file.name
					+ ", 错误信息: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.SECURITY_ERROR:
			progress.setStatus("Security Error");
			this.debug("Error Code: Security Error, File name: " + file.name
					+ ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
			progress.setStatus("Upload limit exceeded.");
			this.debug("Error Code: Upload Limit Exceeded, File name: "
					+ file.name + ", File size: " + file.size + ", Message: "
					+ message);
			break;
		case SWFUpload.UPLOAD_ERROR.FILE_VALIDATION_FAILED:
			progress.setStatus("Failed Validation. Upload skipped.");
			this.debug("Error Code: File Validation Failed, File name: "
					+ file.name + ", File size: " + file.size + ", Message: "
					+ message);
			break;
		case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
			// If there aren't any files left (they were all cancelled) disable
			// the cancel button
			if (this.getStats().files_queued === 0) {
				document.getElementById(this.customSettings.cancelButtonId).disabled = true;
			}
			progress.setStatus("Cancelled");
			progress.setCancelled();
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
			progress.setStatus("Stopped");
			break;
		default:
			progress.setStatus("Unhandled Error: " + errorCode);
			this.debug("Error Code: " + errorCode + ", File name: " + file.name
					+ ", File size: " + file.size + ", Message: " + message);
			break;
		}
	} catch (ex) {
		this.debug(ex);
	}
}
function uploadComplete(file) {
	if (this.getStats().files_queued === 0) {
		document.getElementById(this.customSettings.cancelButtonId).disabled = true;
	}
}
// This event comes from the Queue Plugin
function queueComplete(numFilesUploaded) {
	var status = document.getElementById("divStatus");
	status.innerHTML = numFilesUploaded + " file"
			+ (numFilesUploaded === 1 ? "" : "s") + " uploaded.";
}